CN116254854B - Inner support connecting device of deep foundation pit supporting system - Google Patents
Inner support connecting device of deep foundation pit supporting system Download PDFInfo
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- CN116254854B CN116254854B CN202310519962.7A CN202310519962A CN116254854B CN 116254854 B CN116254854 B CN 116254854B CN 202310519962 A CN202310519962 A CN 202310519962A CN 116254854 B CN116254854 B CN 116254854B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
Abstract
The invention discloses an inner support connecting device of a deep foundation pit supporting system, relates to the technical field of deep foundation pit supporting systems, and solves the problem that an integral top end plate and a side top plate cannot be supported at the same time. The utility model provides an interior support connecting device of deep basal pit support system, includes the end plate, the intermediate strut welding of end plate upper end has the support, the upper end connection of support is provided with linkage type top action mechanism, the equal swing joint in both sides of linkage type top action mechanism is provided with side supporting mechanism, one side cooperation roof pressure of side supporting mechanism has the side roof. The upper end of the support is fixedly welded with the threaded sleeve, the threaded sleeve is in rotary movable fit with the threaded column, the integral large rotary block drives the threaded sleeve and the upper end of the support to rotate, the support frame drives the jacking block to open to two sides when the large rotary block jacks the top end plate upwards, and the integral support frame and the jacking block support and jack the side top plates at two sides.
Description
Technical Field
The invention relates to the technical field of deep foundation pit supporting systems, in particular to an inner supporting connecting device of a deep foundation pit supporting system.
Background
The deep foundation pit is a tunnel mainly excavated in the building industry, a series of underground facilities such as underground pipelines are buried in the tunnel generally, and plates, piles or walls can be arranged on two sides and the upper end of the tunnel to mainly bear components, so that the pressure of soil is supported, a deep foundation pit supporting system is formed, the deep foundation pit is a construction temporary retaining wall structure for stabilizing the foundation pit, and the pressure of the soil can be supported generally through a top end plate and a side top plate;
in the existing internal supporting component, the top end plate is generally supported through two supports, such as a vertical support, and the opposite side top plate is supported through a horizontal support, so that the integral top end plate and the side top plate cannot be supported simultaneously, a worker supports and fixes the horizontal support frame first, and then supports and fixes the vertical support, so that integral operation steps are complicated;
in order to solve the problems, the side top plate and the top end plate are internally provided with the linked jacking mechanism, the side supporting mechanism and other parts for supporting, wherein the lateral top plate is supported by the integral supporting frame, meanwhile, the lateral top plate is supported by the lateral top plate, the lateral top plate and the jacking block of the deep soil are provided with larger pressure, the pressure direction is horizontally towards the inner side of the connecting shaft, the integral supporting frame is bent and deformed under the long-time pressing, the lateral top plate is not displaced under the jacking of the supporting frame, and the external soil blocks are gradually extruded into a tunnel when serious, so that the tunnel collapses;
therefore, in order to reduce the bending of the pressing block and the supporting frame, the pressing mechanism and the movable frame structure are installed on one side of the upper end of the supporting frame, and in summary, the inner support connecting device of the deep foundation pit supporting system is provided.
Disclosure of Invention
The invention aims to provide an inner support connecting device of a deep foundation pit supporting system, which solves the problems that the integral top end plate and the side top plate cannot be supported at the same time in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the inner support connecting device of the deep foundation pit supporting system comprises a bottom end plate, wherein a bracket is welded at the middle support of the upper end of the bottom end plate, a linkage type jacking mechanism is connected and arranged at the upper end of the bracket, two sides of the linkage type jacking mechanism are movably connected and provided with side support mechanisms, one side of each side support mechanism is matched with a side top plate in jacking, one side of the upper end of each side support mechanism is provided with a jacking mechanism in jacking, movable frames are sleeved around the jacking mechanism, and two first support columns are fixedly welded at the front side and the rear side of each movable frame;
the side support mechanism comprises a support frame, a movable groove is formed in the front and back of the support frame in a penetrating mode, a pressing block is fixedly welded at one side end of the support frame, and a top end plate is arranged at the upper end of the linkage type pushing mechanism in a supporting mode;
the top press mechanism is including supporting the briquetting, the upper end that supports the briquetting is provided with the connecting block through rotatory minor axis connection, the upper end activity of connecting block is provided with the second screw thread post, the upper end cooperation of second screw thread post is provided with the circle end block, the fixed welding of second screw thread post upper end has little rotor plate, the inside of locating in the middle of the connecting block upper end is fixed and is provided with rotatory inside groove, the welding of second screw thread post lower extreme has rotatory cooperation piece, the rotatory inside groove that is located the connecting block of rotatory cooperation piece of second screw thread post lower extreme.
Preferably, one side of the movable groove is provided with a connecting shaft in a matched mode, the front side and the rear side of the connecting shaft are fixedly welded with second support columns, and the two second support columns are fixedly welded at the upper end of the bottom end plate.
Preferably, the front side and the rear side of the bottom end of the pressing block are fixedly provided with pressing grooves, and the pressing grooves at the bottom end of the pressing block are in pressing fit with the upper end of the supporting frame.
Preferably, the vertical inserting plates are fixedly welded on the front side and the rear side of the lower end of the round end block, the movable through grooves are formed in the middle of the movable frame in a penetrating mode, the second threaded columns are transversely movably located in the movable through grooves, a plurality of vertical inserting grooves are vertically formed in the two sides of the movable through grooves in a penetrating mode, and the vertical inserting plates are inserted in the vertical inserting grooves.
Preferably, a horizontal slot is fixedly arranged on one side of the vertical plugboard, and the horizontal plugboard is transversely inserted into the horizontal slot on one side of the vertical plugboard.
Preferably, the linkage type jacking mechanism comprises a threaded sleeve and a supporting jacking column, wherein the inner side of the threaded sleeve is rotatably connected with a first threaded column, a plurality of connecting holes are vertically arranged on the front side and the rear side of the first threaded column in a penetrating mode, a special-shaped plug-in block movably connected with the connecting holes is arranged in the threaded sleeve in an inserted mode, the supporting jacking column is fixedly connected to the upper end of the first threaded column, and a large rotating block is fixedly welded to the upper end of the supporting jacking column.
Preferably, the lower extreme welding of support jack-prop has the connection circle piece, the both sides activity of connecting the circle piece is provided with the rotation axis, connect through rotation axis swing joint between circle piece and the support frame.
Preferably, the special-shaped plug block is in a T-shaped structure, and the transverse strip on the special-shaped plug block is in an arc-shaped structure.
Preferably, the cross section of the pressing block is set to be a T-shaped surface, the cross section of the connecting block is set to be a U-shaped surface, and the upper end of the pressing block is connected with the lower end of the connecting block through a rotating shaft.
Preferably, the upper ends of both sides of the bottom end plate are fixedly welded with the matching blocks, the lower ends of the side top plates are provided with through holes in a penetrating mode, and the matching blocks on the bottom end plate are in movable fit with the through holes at the lower ends of the side top plates.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the support frame is supported at the upper end of the bottom end plate, the middle part of the upper end of the support frame is penetrated and arranged into a through hole structure, the upper end of the support frame is fixedly welded with a threaded sleeve, an internal thread is arranged in the threaded sleeve, the internal thread is in rotary movable fit with the external thread on the surface of the first threaded column, the integral large rotary block drives the threaded sleeve and the upper end of the support frame to rotate through rotating a large rotary block on the upper end of the support frame, the upper end of the integral support column can be pushed upwards, the top end plate at the upper end is further pressed, and the support frame is movably connected and arranged at two sides of the round block fixedly welded and connected around the middle part of the support column, so that the support frame drives the top pressing block to open to two sides when the large rotary block pushes the top end plate upwards, and the integral support frame and the top pressing block support and push the side top plates at two sides;
2. according to the invention, the side top plate is supported by the integral support frame, and meanwhile, the outside of the side top plate is cubic soil, the side top plate, the pressing block and the support frame are provided with larger pressure, the pressure direction is horizontally towards the inner side of the connecting shaft, the integral support frame can be bent under long-time pressing, in order to reduce the bending degree of the pressing block and the support frame, a pressing mechanism and a movable frame structure are arranged at one side of the upper end of the support frame, a small rotating plate at the upper end of the pressing mechanism is rotated, the small rotating plate drives a second threaded column at the lower end to rotate, the second threaded column drives a connecting block at the lower end and the pressing block to move downwards, a threaded hole is formed in the middle of the upper end of the round end block in a penetrating way, so that threads on the upper surface of the second threaded column are in rotary fit with the threaded hole, the rotation of the second threaded column downwards presses the integral pressing block and the connecting block, and the lower pressing block are pressed on the upper end of the support frame, and the setting enables one side upper end of the integral support frame to be subjected to downward pressing, so that the lateral pressing force of the integral pressing mechanism is applied to the upper end of the support frame is counteracted, and the lateral pressure of the side top plate applied to one side of the support frame is effectively slowed down.
Drawings
FIG. 1 is a schematic perspective view of the whole structure of the present invention;
FIG. 2 is a perspective view of the entire interior of the present invention;
FIG. 3 is a schematic perspective view of the linkage-type jacking mechanism and side support mechanism and other internal components of the present invention;
FIG. 4 is a schematic perspective view of the components of the pressing mechanism of the present invention;
FIG. 5 is a perspective view of the present invention after separation between the connecting hole and the special-shaped plug;
FIG. 6 is an enlarged perspective cut-away view of the interior of the pressing mechanism of the present invention;
fig. 7 is a perspective view showing the separation between the pressing mechanism and the movable frame in the present invention.
In the figure: 1. a top end plate; 2. a side top plate; 3. a bottom end plate; 4. a bracket; 5. a linkage type jack mechanism; 501. a threaded sleeve; 502. a first threaded post; 503. supporting the top column; 504. a large rotating block; 505. a connection hole; 506. connecting round blocks; 6. a side support mechanism; 601. a support frame; 602. a movable groove; 603. pressing a block; 7. a jacking mechanism; 701. pressing blocks; 702. a connecting block; 703. a second threaded post; 704. a round end block; 705. a small rotating plate; 706. rotating the inner tank; 707. pressing the groove; 708. rotating the mating block; 709. a vertical plugboard; 710. a transverse plugboard; 8. a movable frame; 9. a first support column; 10. a mating block; 11. a second support column; 12. a connecting shaft; 13. a vertical slot; 14. and (5) a special-shaped plug-in block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1 to 7, an embodiment of the present invention provides: an inner support connecting device of a deep foundation pit supporting system is characterized in that a bracket 4 is welded at the middle support of the upper end of a bottom end plate 3, a linkage type jacking mechanism 5 is connected and arranged at the upper end of the bracket 4, two sides of the linkage type jacking mechanism 5 are movably connected and provided with side support mechanisms 6, one side of each side support mechanism 6 is matched and jacked with a side top plate 2, one side of the upper end of each side support mechanism 6 is jacked and provided with a jacking mechanism 7, movable frames 8 are sleeved around the jacking mechanism 7, and two first support columns 9 are fixedly welded at the front side and the rear side of each movable frame 8;
through arranging a support frame 601 in a side support mechanism 6, a movable groove 602 is formed in the front and rear of the support frame 601 in a penetrating manner, a pressing block 603 is fixedly welded at one side end of the support frame 601, a top end plate 1 is arranged at the upper end of a linkage type pressing mechanism 5 in a supporting manner, the pressing mechanism 7 comprises a pressing block 701, the upper end of the pressing block 701 is connected with a connecting block 702 through a rotary short shaft, a second threaded column 703 is rotatably and movably arranged at the upper end of the connecting block 702, a round end block 704 is rotatably matched with the upper end of the second threaded column 703, a small rotating plate 705 is fixedly welded at the upper end of the second threaded column 703, a rotary inner groove 706 is fixedly arranged in the middle of the upper end of the connecting block 702, a rotary matching block 708 at the lower end of the second threaded column 703 is rotatably arranged in the rotary inner groove 706 in the connecting block 702, a plurality of connecting holes 505 are vertically arranged at the inner side of the connecting block 501 in the linkage type pressing mechanism 5, a plurality of connecting holes 505 are vertically arranged at the front and rear sides of the first threaded column 502 in a penetrating manner, the round connecting block 502 is fixedly connected with the rotary shaft 506 through the rotary inner groove 706, the rotary sleeve 501 is fixedly connected with the rotary shaft 506 is movably connected with the rotary shaft 506, and the rotary shaft 503 is movably connected with the rotary shaft 502 through the rotary inner groove 503, and the rotary shaft is movably connected with the rotary shaft 502, and the rotary shaft is fixedly connected with the rotary shaft 506 through the rotary shaft 503, and is fixedly connected with the rotary shaft 503;
the support 4 is supported at the upper end of the bottom end plate 3, the middle part of the upper end of the support 4 is penetrated and arranged to be of a through hole structure, the upper end of the support 4 is fixedly welded with a threaded sleeve 501, an internal thread is arranged in the threaded sleeve 501, the internal thread is in rotary movable fit with the external thread on the surface of a first threaded column 502, the large rotary block 504 which is used for rotatably supporting the upper end of the top column 503 is used for driving the whole large rotary block 504 to rotate and move on the threaded sleeve 501 and the upper end of the support 4, the upper end of the whole support top column 503 can be pushed upwards, the top end plate 1 at the upper end is further pressed, two sides of the support top column 503, which are close to the middle part, are fixedly welded with two sides of a round block 506, are movably connected with a support frame 601, the support top column 503 is arranged in such a way that the large rotary block 504 upwards pushes the top end plate 1, the support block 601 is driven to open to two sides, the whole support frame 601 and the top block 603 support the side top plate 2 at two sides are supported and pushed by the whole support frame 601, the whole support frame 11 is fixedly welded to the two sides of the upper end of the support column 3, the upper end of the support column 11 is fixedly connected with the top support frame 12, and the support frame 601 is in a swinging way, and the two sides of the support frame 601 are movably connected with the support frame 2 is swung upwards, and the support frame 601 is movably and the support frame 2 is pressed and the upper side of the support frame is swing frame 2;
wherein one side of the inside of the movable groove 602 is provided with a connecting shaft 12 in a matching way, the front side and the rear side of the connecting shaft 12 are fixedly welded with second support columns 11, and the two second support columns 11 are fixedly welded at the upper end of the bottom end plate 3.
Through the fixed arrangement of the pressing grooves 707 on the front and rear sides of the bottom end of the pressing block 701, the pressing grooves 707 on the lower end of the pressing block 701 are in pressing fit with the upper end of the supporting frame 601, the front and rear sides of the lower end of the round end block 704 are fixedly welded with the vertical insertion plates 709, a movable through groove is formed in the middle of the movable frame 8 in a penetrating manner, the second threaded column 703 is transversely and movably arranged in the movable through groove, a plurality of vertical insertion grooves 13 are vertically formed in the two sides of the movable through groove in a penetrating manner, the vertical insertion plates 709 are inserted in the vertical insertion grooves 13, a transverse insertion groove is fixedly formed in one side of the vertical insertion plates 709, the transverse insertion plate 710 is transversely inserted in the transverse insertion groove at the front end of the vertical insertion plates 709, the cross section of the pressing block 701 is a T-shaped surface, the cross section of the connecting block 702 is a U-shaped surface, and the protrusions at the upper end of the pressing block 701 are rotationally and movably arranged in the grooves at the lower end of the connecting block 702;
while the integral support frame 601 supports the side top plate 2, as the outside of the side top plate 2 is cubic soil, the side top plate 2, the top pressing block 603 and the support frame 601 have larger pressure, the pressure direction is horizontally towards the inner side of the connecting shaft 12, the integral support frame 601 can be bent under long-time pressing, and in order to reduce the bending of the top pressing block 603 and the support frame 601, a top pressing mechanism 7 and a movable frame 8 structure are arranged on one side of the upper end of the support frame 601;
the small rotating plate 705 at the upper end of the rotary jacking mechanism 7, the small rotating plate 705 drives the second threaded column 703 at the lower end to rotate, the second threaded column 703 drives the connecting block 702 and the jacking block 701 at the lower end to move downwards, a threaded hole is formed in the middle of the upper end of the round end block 704 in a penetrating manner, and further threads on the upper surface of the second threaded column 703 are in rotary fit with the threaded hole, so that the rotation of the second threaded column 703 downwards pushes the integral jacking block 701 and the connecting block 702, the jacking block 701 at the lower end pushes the upper end of the support frame 601, and the arrangement enables the downward compression of the integral jacking mechanism 7 to be carried out on the upper end of one side of the integral support frame 601, so that the transverse pressure of the side top plate 2 received on one side of the support frame 601 is counteracted, and the curvature of the support frame 601 is effectively slowed down;
the pressing block 701 is movably connected with the connecting block 702 through a rotary short shaft, so that a pressing groove 707 at the lower end of the integral pressing block 701 can be fixedly matched with the upper end of the supporting frame 601, the pressing block 701 can be changed when the angle of the supporting frame 601 is changed, a rotary inner groove 706 is arranged in the connecting block 702, and a rotary matching block 708 at the lower end of the second threaded column 703 can be rotatably and movably positioned in the rotary inner groove 706 in the upper end of the connecting block 702;
the special-shaped plugging block 14 is in a T-shaped structure, the transverse strips on the special-shaped plugging block 14 are in an arc structure, the upper ends of the two sides of the bottom end plate 3 are fixedly welded with the matching blocks 10, the lower ends of the side top plates 2 are provided with through holes in a penetrating way from front to back, the matching blocks 10 on the bottom end plate 3 are movably matched with the through holes of the lower ends of the side top plates 2, the vertical plugging plates 709 are fixedly welded on the front and back sides of the lower ends of the round end plates 704, so that the vertical plugging plates 709 can be plugged into the vertical slots 13 on the two sides of the transverse through slot cavities in the movable frame 8, the round end plates 704 can be fixed on the movable frame 8 through the arrangement, then the transverse plugging plates 710 can be transversely plugged into the transverse slots on the vertical plugging plates 709, and the fixed matching performance between the round end plates 704 and the movable frame 8 is further improved through the plugging matching between the vertical plugging plates 709 and the transverse plugging plates 710, this makes holistic roof pressure mechanism 7 can fix on movable frame 8, and then the support frame 601 of improvement roof pressure mechanism 7 to the lower extreme supports the pressure performance, vertical arrangement runs through at first screw thread post 502 and sets up a plurality of connecting holes 505, wherein special-shaped plug-in block 14 can cartridge in connecting hole 505, and then support between holistic screw thread sleeve 501 and the first screw thread post 502 and press spacing, wherein special-shaped plug-in block 14 horizontal section sets up to the curved surface and can laminate in the screw tooth of first screw thread post 502 surface, this setting makes holistic special-shaped plug-in block 14 be difficult for falling from connecting hole 505, and fixed between holistic screw thread sleeve 501 and the first screw thread post 502 has been improved through the fixed cooperation of special-shaped plug-in block 14, also improved the support performance of holistic support jack post 503 to top end plate 1.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides an interior support connecting device of deep basal pit support system, includes bottom end plate (3), its characterized in that: the middle support of bottom end plate (3) upper end fixedly connected with support (4), the upper end connection of support (4) is provided with linkage type top actuating mechanism (5), the both sides of linkage type top actuating mechanism (5) all swing joint is provided with side support mechanism (6), one side cooperation roof-pressing of side support mechanism (6) has side roof (2), one side roof-pressing of side support mechanism (6) upper end is provided with roof-pressing mechanism (7), the cover all around of roof-pressing mechanism (7) is provided with movable frame (8), both sides all fixedly welded with two first support column (9) around movable frame (8), the upper end support of linkage type top actuating mechanism (5) is provided with top end plate (1);
the side support mechanism (6) comprises a support frame (601), a movable groove (602) is formed in the front and back of the support frame (601) in a penetrating mode, and a pressing block (603) is fixedly connected to one side end of the support frame (601);
the jacking mechanism (7) comprises a pressing block (701), wherein the upper end of the pressing block (701) is connected with a connecting block (702) through a rotary short shaft, a second threaded column (703) is movably arranged at the upper end of the connecting block (702), a round end block (704) is arranged at the upper end of the second threaded column (703) in a matched mode, a small rotary plate (705) is fixedly connected to the upper end of the second threaded column (703), a rotary inner groove (706) is fixedly arranged in the middle of the upper end of the connecting block (702), a rotary matching block (708) is fixedly connected to the lower end of the second threaded column (703), and the rotary matching block (708) at the lower end of the second threaded column (703) is rotatably arranged in the rotary inner groove (706) in the connecting block (702);
one side of the inside of the movable groove (602) is provided with a connecting shaft (12) in a matched mode, the front side and the rear side of the connecting shaft (12) are fixedly welded with second support columns (11), the two second support columns (11) are fixedly connected to the upper end of the bottom end plate (3), the front side and the rear side of the bottom end of the pressing block (701) are fixedly provided with pressing grooves (707), the pressing grooves (707) at the bottom end of the pressing block (701) are in pressing fit with the upper end of the supporting frame (601), the front side and the rear side of the lower end of the round end block (704) are fixedly connected with vertical inserting plates (709), movable through grooves are formed in the middle of the movable frame (8) in a penetrating mode up and down, the second threaded column (703) is transversely movably positioned in the movable through groove, a plurality of vertical slots (13) are vertically and penetratingly arranged at two sides of the movable through groove, the vertical inserting plate (709) is inserted and arranged in the vertical slots (13), a transverse inserting groove is fixedly arranged at one side of the vertical inserting plate (709), a transverse inserting plate (710) is transversely inserted and arranged in the transverse inserting groove at one side of the vertical inserting plate (709), the linkage type jacking mechanism (5) comprises a threaded sleeve (501) and a supporting jacking column (503), a first threaded column (502) is rotatably connected at the inner side of the threaded sleeve (501), a plurality of connecting holes (505) are vertically and penetratingly arranged at the first threaded column (502), the novel threaded sleeve is characterized in that a special-shaped plug-in block (14) movably connected with a connecting hole (505) is arranged in the threaded sleeve (501), the upper end of the first threaded column (502) is fixedly connected with a supporting jack post (503), the upper end of the supporting jack post (503) is fixedly connected with a large rotating block (504), the lower end of the supporting jack post (503) is fixedly connected with a connecting round block (506), two sides of the connecting round block (506) are movably provided with rotating shafts, and the connecting round block (506) and the supporting frame (601) are movably connected through the rotating shafts.
2. The inner support connection device of a deep foundation pit supporting system according to claim 1, wherein: the special-shaped plug-in block (14) is of a T-shaped structure, and the transverse strip on the special-shaped plug-in block (14) is of an arc-shaped structure.
3. The inner support connecting device of the deep foundation pit supporting system according to claim 2, wherein the cross section of the pressing block (701) is set to be a T-shaped surface, the cross section of the connecting block (702) is set to be a U-shaped surface, and the upper end of the pressing block (701) is connected with the lower end of the connecting block (702) through a rotating shaft.
4. The inner support connection device of a deep foundation pit supporting system according to claim 1, wherein: the upper ends of the two sides of the bottom end plate (3) are fixedly connected with matching blocks (10), through holes are formed in the front and back of the lower end of the side top plate (2), and the matching blocks (10) on the bottom end plate (3) are in movable fit with the through holes in the lower end of the side top plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310519962.7A CN116254854B (en) | 2023-05-10 | 2023-05-10 | Inner support connecting device of deep foundation pit supporting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310519962.7A CN116254854B (en) | 2023-05-10 | 2023-05-10 | Inner support connecting device of deep foundation pit supporting system |
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| Publication Number | Publication Date |
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| CN116254854A CN116254854A (en) | 2023-06-13 |
| CN116254854B true CN116254854B (en) | 2023-07-18 |
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| CN202310519962.7A Active CN116254854B (en) | 2023-05-10 | 2023-05-10 | Inner support connecting device of deep foundation pit supporting system |
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| CN218597181U (en) * | 2022-11-30 | 2023-03-10 | 山西一建集团有限公司 | Permanent foundation pit supporting pit-in-pit structure in historic site area |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218540718U (en) * | 2022-10-31 | 2023-02-28 | 湖北恒瑞五龙建设有限公司 | Foundation pit supporting structure of sewage pipe network |
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